Results 91 to 100 of about 139,835 (226)
Abstract The Sinus Aestuum (SA) dark mantle deposit (DMD) is a regional pyroclastic deposit on the central lunar near‐side. Spectra from the SA DMD are anomalous when compared to other DMDs and have been interpreted to represent a high abundance of the mineral spinel. The SA spinels are compositionally distinct compared to other lunar spinels and their
Cosmo T. Sikes +2 more
wiley +1 more source
Sensitivity of OMI SO
Since 2004, the satellite-borne Ozone Mapping Instrument (OMI) has observed sulphur dioxide (SO$_{2}$) plumes during both quiescence and effusive eruptive activity at Soufrière Hills Volcano, Montserrat.
Christopher, T +3 more
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The dynamics of volcanic jets : Temporal evolution of particles exit velocity from shock‐tube experiments [PDF]
Pyroclast ejection during explosive volcanic eruptions occurs under highly dynamic conditions involving great variations in flux, particle sizes, and velocities.
Alatorre-Ibargüengoitia +45 more
core +2 more sources
Abstract Volcanic edifices are known to be unstable and their collapses have been observed several times in history. A collapse of island or coastal volcanoes is especially hazardous for the population living on regional shorelines due to the generation of destructive tsunami waves.
F. Stoepke +6 more
wiley +1 more source
Counterfactual Analysis of Runaway Volcanic Explosions
“Few, beside the student of such phenomena, will be able to realize what would have resulted from a more concentrated liberation of the accumulating energy if, for instance, instead of being separated into moderate earth movements and gas emissions ...
Willy Aspinall +2 more
doaj +1 more source
Abstract A volcanic tremor is a seismic event linked to volcanic processes, identified by ongoing ground shaking. They play a crucial role in understanding internal volcanic activities and forecasting eruptions. Detecting weak volcanic tremor signals before an eruption has remained a difficult task.
Takashi Hirose, Hideki Ueda
wiley +1 more source
The 1723 AD violent Strombolian and phreatomagatic eruption at Irazu volcano (Costa Rica) [PDF]
The largest of the recorded historic eruptions at Irazú volcano began on February 16, 1723 and lasted until at least December 11. We here critically examine deposits of this eruption exposed on the summit of Irazú. Our reconstruction of the eruption is
Alvarado, G. E., Schmincke, Hans-Ulrich
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Similarities and differences in the historical records of lava dome-building volcanoes: implications for understanding magmatic processes and eruption forecasting [PDF]
A key question for volcanic hazard assessment is the extent to which information can be exchanged between volcanoes. This question is particularly pertinent to hazard forecasting for dome-building volcanoes, where effusive activity may persist for years ...
Almeev +315 more
core +3 more sources
Crystal‐Rich Magma Is Solid‐Like and Liquefies When Deformed
Abstract The rheology of highly crystalline magma regulates its mobility, which may, in turn, determine the occurrence and styles of volcanic eruptions. We measured the rheology of high‐temperature magma with a basaltic‐andesite composition to document the properties that govern the transition from solid‐like to liquid‐like behavior.
Atsuko Namiki +7 more
wiley +1 more source
Geoquímica preliminar de materiais lávicos e piroclásticos emitidos em 2014 na Ilha do Fogo (Arquipélago de Cabo Verde) [PDF]
Resumo ...
Caldeira, Rita +11 more
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